Prime Minister Binyamin Netanyahu spoke on the phone Sunday with his Belgian counterpart Elio Di Rupo to discuss the details of the ongoing investigation into the shooting that left four dead at the Brussels Jewish Museum on Saturday.

The Belgian leader expressed his condolences over the deaths, which included two Israeli tourists, and condemned all manifestations of anti-Semtism.

"I am very disturbed by the growing anti-Semitism in Europe. There must be zero tolerance for anti-Semitism toward Jews and their state," Netanyahu said.

The premier thanked his counterpart for his cooperation in the probe. "As of now, you are the only European leader who has called me on this issue," Netanyahu told Di Rupo.